- Postcode districts
- BA13
- Nearby
- Warminster, Trowbridge and Frome
- Guide price
- £6,600–£13,250
- Typical time on site
- 6–12 working days
- Water
- Hard across most of Wiltshire
- Survey
- Free, at your home
What does a loft bathroom cost in Westbury?
For Westbury, our guide range for a loft bathroom is £6,600 to £13,250 including VAT. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Shower, basin and WC replaced
Signature
- Pump or macerator where needed
New loft bathroom
- Formed in an existing loft room
Guide prices for Westbury including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Westbury
As well as Westbury itself (BA13), we survey in Warminster, Trowbridge and Frome.
Being a smaller town does not change how we work in Westbury: free survey, written quote, one team. For a loft bathroom in a tank-fed Westbury home, we work out how the shower will get its pressure before choosing a single fitting. If your Westbury loft conversion has a bedroom but no bathroom, the survey starts with where the soil stack runs and how much headroom you have.
Water across much of Wiltshire is hard. If your supply in Westbury is the same, limescale on shower glass and heads is a real issue: easy-clean glass, rub-clean nozzles and a squeegee make a big difference. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- Fitted furniture made to the eaves, so the low space behind the slope becomes storage
- A shower pump on a gravity system, an electric shower, or advice on moving to mains pressure, depending on your system
- A check of the floor joists where a bath or large shower tray will sit
- An extractor fan ducted through the roof or a gable wall, with the duct insulated through cold spaces
Decisions to make first
Gravity or pumped waste
Gravity is silent and maintenance-free. A pumped waste or macerator lets fittings sit away from the stack, provided the house has a WC on gravity drainage elsewhere.
Bath or no bath
A bath under the slope makes good use of low space, but the floor has to carry it when it is full of water and someone is in it.
Rules that apply in England
In England, new drainage and a new connection to the soil stack fall under Part H, a new bathroom needs extract of 15 litres per second intermittent or 8 litres per second continuous under Approved Document F, and new circuits are notifiable under Part P. If the work includes an unvented hot-water cylinder, it must be fitted by a G3-qualified installer.

